package item10;

public abstract class ATest{
	abstract void draw();
	public ATest() {
		System.out.println("Atest");
	}
	public static void main(String[] args) {
		ATest aTest = new Btest();
		aTest.draw();
	}
}
class Btest extends ATest{

	public Btest() {
		System.out.println("Btest");
	}
	@Override
	void draw() {
		System.out.println("B draw");
	}
	
}
class Ctest {
	
}